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Type: Journal article
Title: Tau reconstruction methods at an electron-positron collider in the search for new physics
Author: Li, J.
Williams, A.
Citation: Physical Review D - Particles, Fields, Gravitation and Cosmology, 2016; 93(7):075019-1-075019-17
Publisher: American Physical Society
Issue Date: 2016
ISSN: 1550-7998
Statement of
Jinmian Li and Anthony G. Williams
Abstract: By exploiting the relatively long lifetime of the tau lepton, we propose several novel methods for searching for new physics at an electron-positron collider. We consider processes that involve final states consisting of a tau lepton pair plus two missing particles. The mass and spin of the new physics particles can be measured in 3-prong tau decays. The tau polarization, which reflects the coupling to new physics, can be measured from the τ → πν decay channel using the impact parameter distribution of the charged pion. We also discuss the corresponding backgrounds for these measurements, the next-to-leading order (NLO) effects, and the implications of finite detector resolution.
Rights: © 2016 American Physical Society
RMID: 0030046939
DOI: 10.1103/PhysRevD.93.075019
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Appears in Collections:Physics publications

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